Method of controlling parallel processing at an instruction level and processor for realizing the method

摘要

Apparatus for realizing instruction level parallel processing includes an instruction buffer for storing instructions fetched from a memory until the instructions are sent from the instruction buffer, an instruction register unit for storing and issuing the sent instructions to a plurality of execution units in the order of instruction, and a judgement part for judging whether it is possible to execute a set of unissued instructions to be next issued, in parallel, as stored in the instruction buffer and/or the instruction register unit and for controlling parallel processing of the set of instructions, based on the result of a judgement on the possibility of parallel processing.